Also returning to Millionaire is the new "ask the host" lifeline, which, despite its limited success, provided some of the most entertaining moments of the recent run.

Clarkson was incorrect about several questions, and at one point told a contestant his wrong answer was correct, without checking his screen first.

Matthew Worthy, joint managing director of production company Stellify Media, said: "Ask The Host is back! And a quick tip for future contestants: don't use it on questions about fine art, haute cuisine or the scouting association.”